Aqueous ink composition for writing instrument
US5466283A · kind A · utility
55Cited by
10References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1993 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Sep 3, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There is provided aqueous ink of high viscosity for writing instrument, capable of maintaining stable dispersed or dissolved state of the coloring material even after a prolonged period and exhibiting high fluidity under a shearing force applied by the writing operation in the ball point pen. The ink contains, as essential components, a coloring material, succinoglycan which is an organic acid-modified heteropolysaccharide composed of glucose and galactose as component monosaccharides, and aqueous medium in which water constitutes at least 50 wt. %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.